任氏液（Ringer's solution)也叫林格氏液(Riger's Solution)，是因為林格除了含有氯化鈉成分，還含鈉離子、鉀離子、鈣離子、氯離子等成分。因為它是由英國生理學(xué)家“林格”所發(fā)明，所以稱林格氏液。是一種比較接近兩棲動物內(nèi)環(huán)境的液體，可以用來延長青蛙心臟在體外跳動時間、保持兩棲類其他離體組織器官生理活性等。

運輸與保存：常溫運輸與保存，開啟后盡快使用！

本品經(jīng)過0.2μm過濾除菌！

有效期：12個月

根據(jù)實驗具體要求，保存或清洗離體組織。

由于Ringer's液含鈣離子，容易產(chǎn)生沉淀。如果產(chǎn)生少許沉淀，可以加熱溶解或過濾后使用，產(chǎn)生大量沉淀應(yīng)棄用。

Ringer's solution is a solution of several salts dissolved in water for the purpose of creating an isotonic solution relative to the body fluids of an animal. Ringer's solution typically contains sodium chloride, potassium chloride, calcium chloride and sodium bicarbonate, with the last used to balance the pH. Other additions can include chemical fuel sources for cells, including ATP and dextrose, as well as antibiotics and antifungals.

Ringer's solution is frequently used in in vitro experiments on organs or tissues, such as in vitro muscle testing. The precise mix of ions can vary depending upon the taxon, with different recipes for birds, mammals, freshwater fish, marine fish, etc.

Ringer's solution is named after Sydney Ringer, who in 1882–1885 determined that a solution perfusing a frog's heart must contain sodium, potassium and calcium salts in a definite proportion if the heart is to be kept beating for long.